#18447B#18447B

#18447B is a dark, moderate cyan. Relative luminance 0.058; OKLCH L 38.8% C 0.105 H 255.8°. Best body text is #FFFFFF at 9.76:1 contrast (WCAG AA passes).

Color values

HEX	#18447B
RGB	rgb(24, 68, 123)
HSL	hsl(213, 67%, 29%)
HSV	hsv(213, 80%, 48%)
CMYK	cmyk(80.5%, 44.7%, 0%, 51.8%)
CIE-LAB	lab(28.79, 6.21, -35.56)
CIE-LCH	lch(28.79, 36.10, 279.90°)
OKLab	oklab(38.78% -0.0257 -0.1018)
OKLCH	oklch(38.78% 0.105 255.8)
XYZ	xyz(6.0176, 5.7578, 19.5293)
Luminance	0.0576 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18447B #7B4F18

analogous

#18767B #18447B #1D187B

triadic

#18447B #7B1844 #447B18

tetradic

#18447B #7B1876 #7B4F18 #187B1D

square

#18447B #7B1876 #7B4F18 #187B1D

split-complementary

#18447B #7B1D18 #767B18

monochromatic

#050E1A #0E2848 #18447B #2260AE #367ED8

Accessibility & contrast

On white

9.76

#18447B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#18447B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18447B

9.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18447B	#FFFFFF	#000000	##FFFFFF
##18447B	1.00	9.76	2.15	9.76
#FFFFFF	9.76	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28497D

Deuteranopia (green-blind)

#16407A

Tritanopia (blue-blind)

#005159

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #18447b;
/* rgb */ color: rgb(24, 68, 123);
/* oklch */ color: oklch(38.8% 0.105 255.8);

Tailwind

colors: {
  custom: {
    50: '#6577a1',
    500: '#18447b',
    950: '#000000',
  },
}

SCSS

$custom: #18447b;
$custom-light: #6577a1;
$custom-dark: #000000;

JSON

{
  "hex": "#18447b",
  "rgb": {
    "r": 24,
    "g": 68,
    "b": 123
  },
  "hsl": {
    "h": 213.333,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.38775,
    "c": 0.10502,
    "h": 255.8
  },
  "luminance": 0.05758
}

Semantic roles & 50–950 ramp

primary

#18447B

secondary

#B07E3F

accent

#9D3EEA

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#06080F

muted

#7A7B7F

Preview Lab

Preview with #18447B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →